Why are My Streaming Video and Audio Out of Sync on My Dacast Stream?

By Ruth Young

2 Min Read

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Ruth Young

Ruth is a Customer Success Specialist with experience in digital video platforms as well as technology companies in Silicon Valley and beyond.

Table of Contents

    Streaming Video and Audio Out of Sync

    It is quite common for encoders to get out of sync when streaming both video and audio feeds if the CPU of the machine running the encoder is being taxed.

    If you are encountering this issue, please take a look at the system resources monitor while streaming. It might be that you need to change some settings, or perhaps your computer needs an update.

    Usually, the CPU going over 60% (especially over 80%) can definitely result in issues. Dropped frames can also result in issues as well. These are typically ISP, packet loss, or server-based issues.

    There are several ways to determine probable causes. Monitoring your encoder tells you everything from the actual input to the actual processing of the stream.

    This also applies to the resulting file archive these encoders might be saving to your computer. For more tips on how to diagnose broadcasting issues, check out our guide on how to troubleshoot your live streams.

    Required Encoder Settings

    Check your encoder settings to make sure they are set in accordance with Dacasts required configurations.

    The following encoder settings are required, regardless of your selected resolution and bitrate:

    VIDEO CODECH.264 (x264 may work)
    FRAME RATE25 or 30
    KEYFRAME INTERVAL2 secs (or 2x frame rate)
    SCANNINGProgressive
    ENCODING BITRATEConstant (CBR)
    AUDIO CODECAAC
    AUDIO BITRATE128 kbps
    AUDIO CHANNELS2 (Stereo)
    AUDIO SAMPLE RATE48 kHz (48,000 Hz)

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    Additional Resources

    author avatar

    Ruth Young

    Ruth is a Customer Success Specialist with experience in digital video platforms as well as technology companies in Silicon Valley and beyond.

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